Home / 1,387,210.80-2,080,384.20-546,020.40

Finding the Fourth Proportional to 1,387,210.80, 2,080,384.20 and 546,020.40

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Solution

The fourth proportional to 1,387,210.80, 2,080,384.20 and 546,020.40 is: 818,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,210.80 : 2,080,384.20 = 546,020.40 : x
  2. Step 2: Convert to fraction form
    1,387,210.80/2,080,384.20 = 546,020.40/x
  3. Step 3: Cross multiply
    1,387,210.80x = 2,080,384.20 × 546,020.40
  4. Step 4: Simplify right side
    1,387,210.80x = 1,135,932,213,037.68
  5. Step 5: Solve for x
    x = 1,135,932,213,037.68/1,387,210.80
  6. Step 6: Final answer
    x = 818,860.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.